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Jesser J, Awounvo S, Vey JA, Vollherbst DF, Hilgenfeld T, Chen M, Nguyen TN, Schönenberger S, Bendszus M, Möhlenbruch MA, Weyland CS. Prediction and outcomes of cerebral vasospasm in ischemic stroke patients receiving anterior circulation endovascular stroke treatment. Eur Stroke J 2023; 8:684-691. [PMID: 37254510 PMCID: PMC10472964 DOI: 10.1177/23969873231177766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/07/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Vasospasm is a common complication of endovascular therapy (EVT). There is a lack of understanding of risk factors for periprocedural vasospasm. Here, we aimed to identify factors associated with vasospasm in patients with acute ischemic stroke who undergo EVT. METHODS We conducted a retrospective single-center analysis of patients receiving EVT for anterior circulation vessel occlusion between January 2015 and December 2021. Patients were excluded if they showed signs of intracranial atherosclerotic disease (ICAD) or if they underwent intra-arterial thrombolysis. Study groups were defined as patients developing vasospasm during EVT (V+) and patients who did not (V-). The study groups were compared in univariable analysis. Multivariable regression models were developed to predict the patient's risk for developing vasospasm based on pre-identified potential prognostic factors. The secondary endpoint was clinical outcome defined as the modified Rankin Scale (mRS) difference between pre-stroke mRS and discharge mRS (delta mRS) and likelihood of successful reperfusion (TICI 2b/3). RESULTS In total, 132/1768 patients (7.5%) developed vasospasm during EVT. Vasospasm was more likely to occur in EVT with multiple thrombectomy attempts and after several stent retriever maneuvers. Factors associated with developing vasospasm were younger age (OR = 0.967, 95% CI = 0.96-0.98) and lower pre-stroke mRS (OR = 0.759, 95% CI = 0.63-0.91). The prediction model incorporating patient age, pre-stroke mRS, stent retriever thrombectomy attempts, and total attempts as prognostic factors was found to predict vasospasm with good accuracy (AUC = 0.714, 95% CI = 0.709-0.720). V+ patients showed higher median (IQR) delta mRS (2 (1-4) vs 2 (1-3); p = 0.014). There was no difference in successful reperfusion (TICI 2b-3) between those with or without vasospasm. CONCLUSION Vasospasm was a common complication in EVT affecting younger and previously healthy patients. Presence of vasospasm did not reduce the likelihood of successful reperfusion. As independent predictors, patient age, pre-stroke mRS, thrombectomy maneuvers, and stent retriever attempts predict the occurrence of vasospasm during EVT with good accuracy.
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Affiliation(s)
- Jessica Jesser
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Sinclair Awounvo
- Department of Medical Biometry, Heidelberg University Hospital, Heidelberg, Germany
| | - Johannes A Vey
- Department of Medical Biometry, Heidelberg University Hospital, Heidelberg, Germany
| | - Dominik F Vollherbst
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Tim Hilgenfeld
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Min Chen
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thanh N Nguyen
- Department of Neurology and Department of Radiology, Boston Medical Center, Boston, MA, USA
| | | | - Martin Bendszus
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Markus A Möhlenbruch
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
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Charvet A, Bouchier B, Dailler F, Ritzenthaler T. Nicotine Replacement Therapy Does Not Reduce Headaches Following Subarachnoid Hemorrhage: A Propensity Score-Matched Study. Neurocrit Care 2023; 38:9-15. [PMID: 36050538 DOI: 10.1007/s12028-022-01576-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 07/26/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND A significant number of patients admitted for aneurysmal subarachnoid hemorrhage (aSAH) are active smokers and are at risk of developing nicotine withdrawal symptoms (e.g., cravings, irritability, insomnia, headaches, etc.). This study aimed to evaluate the use of nicotine replacement therapy (NRT) regarding headache severity and analgesics consumption. METHODS A retrospective study was conducted using prospectively collected data from 2014 to 2019 in the neurointensive care unit of the Hospices Civils in Lyon, France. We performed a propensity score matching analysis. The covariables used were age, sex, initial World Federation of Neurosurgical Societies score, Hijdra sum score, and factors associated with pain following aSAH (history of chronic pain, anxiety, or depression). Smokers received NRT through a transdermal device. The primary end point was headache control. Secondary end points were mean numerical pain rating scale score and analgesics consumption. RESULTS One hundred and fifty-five patients were included among 523 patients hospitalized for aSAH. Fifty-one patients underwent nicotine substitution and were matched to 51 unsubstituted patients. The headache control rate was not different between the two groups (43.1% vs. 31.4%, p = 0.736). The mean numeric pain rating scale score in the substituted group was 2.2 (1.1-3.5) and 2.4 (1.6-3.1) in the unsubstituted group (p = 0.533). The analgesics consumption (acetaminophen, tramadol, and morphine) was the same in the two groups. CONCLUSIONS The use of NRT in the acute phase of aSAH does not seem to have an impact on the intensity of headaches or analgesics consumption.
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Affiliation(s)
- Aude Charvet
- Service de Réanimation Neurologique, Hospices Civils de Lyon, 59 Boulevard Pinel, 69677, Bron Cedex, France.
| | - Baptiste Bouchier
- Service de Réanimation Neurologique, Hospices Civils de Lyon, 59 Boulevard Pinel, 69677, Bron Cedex, France
| | - Frédéric Dailler
- Service de Réanimation Neurologique, Hospices Civils de Lyon, 59 Boulevard Pinel, 69677, Bron Cedex, France
| | - Thomas Ritzenthaler
- Service de Réanimation Neurologique, Hospices Civils de Lyon, 59 Boulevard Pinel, 69677, Bron Cedex, France
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Jesser J, Potreck A, Vollherbst D, Seker F, Chen M, Schönenberger S, Do TD, Bendszus M, Möhlenbruch MA, Weyland CS. Effect of intra-arterial nimodipine on iatrogenic vasospasms during endovascular stroke treatment - angiographic resolution and infarct growth in follow-up imaging. BMC Neurol 2023; 23:5. [PMID: 36604639 PMCID: PMC9814217 DOI: 10.1186/s12883-022-03045-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/27/2022] [Indexed: 01/07/2023] Open
Abstract
PURPOSE The treatment of vasospasms during endovascular stroke treatment (EST) with intra-arterial nimodipine (NM) is routinely performed. However, the efficacy of resolving iatrogenic vasospasms during the angiographic intervention and the infarct development in follow-up imaging after EST has not been studied yet. METHODS Retrospective single-center analysis of patients receiving EST for anterior circulation vessel occlusion between 01/2015 and 12/2021. The primary endpoint was ASPECTS in follow-up imaging. Secondary endpoints were the clinical outcome (combined endpoint NIHSS 24 h after EST and difference between modified Rankin Scale (mRS) before stroke and at discharge (delta mRS)) and intracranial hemorrhage (ICH) in follow-up imaging. Patients with vasospasms receiving NM (NM+) or not (NM-) were compared in univariate analysis. RESULTS Vasospasms occurred in 79/1283 patients (6.2%), who consecutively received intra-arterial NM during EST. The targeted vasospasm angiographically resolved in 84% (66/79) under NM therapy. ASPECTS was lower in follow-up imaging after vasospasms and NM-treatment (NM - 7 (6-9), NM + 6 (4.5-8), p = 0.013) and the clinical outcome was worse (NIHSS 24 h after EST was higher in patients treated with NM (median, IQR; NM+: 14, 5-21 vs. NM-: 9, 3-18; p = 0.004), delta-mRS was higher in the NM + group (median, IQR; NM+: 3, 1-4 vs. NM-: 2, 1-2; p = 0.011)). Any ICH (NM+: 27/79, 34.2% vs. NM-: 356/1204, 29.6%; p = 0.386) and symptomatic ICH (NM+: 2/79, 2.5% vs. NM-: 21/1204, 1.7%; p = 0.609) was equally distributed between groups. CONCLUSION Intra-arterial nimodipine during EST resolves iatrogenic vasospasms efficiently during EST without increasing intracranial hemorrhage rates. However, patients with vasospasms and NM treatment show higher infarct growth resulting in lower ASPECTS in follow-up imaging.
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Affiliation(s)
- Jessica Jesser
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Arne Potreck
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Dominik Vollherbst
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Fatih Seker
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Min Chen
- grid.5253.10000 0001 0328 4908Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Silvia Schönenberger
- grid.5253.10000 0001 0328 4908Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Thuy D. Do
- grid.5253.10000 0001 0328 4908Department of Diagnostic and Interventional Radiology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Martin Bendszus
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Markus A. Möhlenbruch
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Charlotte S. Weyland
- grid.5253.10000 0001 0328 4908Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
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Magnesium Levels and Diastolic Blood Pressure (DBP) as a Vasospasm Prediction Metric in Patients With Aneurysmal Subarachnoid Hemorrhage (SAH). Cureus 2022; 14:e23161. [PMID: 35444882 PMCID: PMC9010001 DOI: 10.7759/cureus.23161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/14/2022] [Indexed: 11/10/2022] Open
Abstract
Introduction Vasospasm is a significant cause of morbidity and mortality in patients with aneurysmal subarachnoid hemorrhage (SAH). The purpose of this study is to evaluate a possible link between vasospasm in patients with aneurysmal SAH and magnesium and blood pressure levels. Methods Subjects were selected based on chart review of patients presenting to a comprehensive stroke center in Southern California with aneurysmal SAH. 27 were included based on the following criteria: patients greater than 18 years of age, aneurysmal SAH, clinically symptomatic vasospasms and at least one diagnostic confirmation - either from a transcranial doppler (TCD) or digital subtraction angiogram (DSA). The following exclusion criteria also applied: 1) incomplete documentation in the medical record; 2) patients <18 years of age; and 3) patients without TCD measurements. Results In an overall analysis of all patients with or without vasospasm, it was found that the presence of vasospasm was significantly correlated with diastolic blood pressures (DBPs) on day of vasospasm with an r value of 0.418 and p<0.001. Average daily DBPs throughout hospital stay were also correlated with vasospasm with an r-value of 0.455 and p<0.001. Changes in magnesium overall were also significantly related to left Lindegaard ratios with an r value of -0.201 and p value of 0.032. Lindegaard ratios were significantly correlated with age with r values of 0.510, p<0.001, and r=-0.482, p<0.001 for left and right, respectively. A change in magnesium was inversely correlated to the left Lindegaard ratio with an n of 31 and p value of 0.014 (r= -0.439) in patients with vasospasm. We also found a lower incidence of vasospasm in patients older than 65. Conclusion Monitoring magnesium and increases in DBP might be effective as a prophylactic adjunct method in patients with SAH in an effort to predict clinical vasospasm.
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Dharia A, Lacci JV, Mascitelli J, Seifi A. Impact of Ruptured Aneurysm Circulation on Mortality: A Nationwide Inpatient Sample Analysis. J Stroke Cerebrovasc Dis 2020; 29:105124. [PMID: 32912535 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE This study investigates the effect of aneurysm circulation on mortality and patient outcomes after aneurysmal subarachnoid hemorrhage (SAH) within the United States. METHODS A retrospective cohort study was conducted using the Nationwide Inpatient Sample (NIS), a part of the Healthcare Cost and Utilization Project (HCUP), with ICD-10 codes for non-traumatic SAH between 2015-2016. Aneurysms were stratified as either anterior or posterior circulation. Multivariate logistic regression was used to find the impact of selected variables on the odds of mortality. RESULTS The NIS reported 1,892 cases of non-traumatic SAH within the study period that were predominantly anterior circulation (82.6%), female (68.6%), white (57.7%), with mean age of 59.07 years, and in-hospital mortality of 21.4%. Anterior circulation aneurysms were associated with lower severity of initial illness (p = 0.014) but higher likelihood of vasospasm (p = 0.0006) than those of the posterior circulation. In a multivariate logistic regression analysis, mortality was associated with posterior circulation aneurysms (OR: 1.42; CI 95% 1.005-20.10, p = 0.047), increasing age (OR: 1.035; 95% CI 1.022-1.049; p < 0.0001), and shorter hospital stays (OR: 0.7838; 95% CI 0.758-0.811; p < 0.0001). Smoking history (OR: 0.825; 95% CI 0.573-1.187, p > 0.05) and vasospasm (OR: 1.005; 95% CI 0.648-1.558; p > 0.05) were not significantly associated with higher odds of mortality. CONCLUSIONS Mortality following aneurysmal SAH is associated with posterior circulation aneurysms, and increasing age, but not smoking history or vasospasm. These findings may be useful for prognostication and counseling patients and families.
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Affiliation(s)
- Anand Dharia
- Long School of Medicine, University of Texas Health at San Antonio, Texas, USA.
| | - John V Lacci
- Long School of Medicine, University of Texas Health at San Antonio, Texas, USA.
| | - Justin Mascitelli
- Department of Neurosurgery, University of Texas Health at San Antonio, Texas, USA.
| | - Ali Seifi
- Department of Neurosurgery, University of Texas Health at San Antonio, Texas, USA.
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Ding CY, Wang FY, Cai HP, Chen XY, Zheng SF, Yu LH, Lin YX, Lin ZY, Kang DZ. Can admission lipoprotein-associated phospholipase A2 predict the symptomatic cerebral vasospasm following aneurysmal subarachnoid hemorrhage? Chin Neurosurg J 2020; 6:9. [PMID: 32922938 PMCID: PMC7398414 DOI: 10.1186/s41016-020-00188-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 03/09/2020] [Indexed: 11/10/2022] Open
Abstract
Background Inflammation has been believed to be related to the development of cerebral vasospasm following aneurysmal subarachnoid hemorrhage (aSAH). A potential biomarker for vascular inflammation that is well recognized is the lipoprotein-associated phospholipase A2 (Lp-PLA2). However, whether Lp-PLA2 can predict the occurrence of symptomatic cerebral vasospasm (SCV) in aSAH patients is still unknown. Thus, this study aimed to assess the value of Lp-PLA2 for predicting SCV in patients with aSAH. Methods Between March 2017 and April 2018, we evaluated 128 consecutive aSAH patients who were admitted in the First Affiliated Hospital of Fujian Medical University. Their Lp-PLA2 level was obtained within 24 h of the initial bleeding. Factors might be related to SCV were analyzed. Results Compared to patients without SCV, those with SCV (9.4%, 12/128) had significantly higher Lp-PLA2 level. Multivariate logistic analysis revealed that worse modified Fisher grade (OR = 10.08, 95% CI = 2.04-49.86, P = 0.005) and higher Lp-PLA2 level (OR = 6.66, 95% CI = 1.33-3.30, P = 0.021) were significantly associated with SCV, even after adjustment for confounders. Based on the best threshold, Lp-PLA2 had a sensitivity of 83.3% and a specificity of 51.7% for predicting SCV, as shown by the receiver operating characteristic curve analysis. In the poor World Federation of Neurosurgical Societies grade patient sub-group, patients with Lp-PLA2 > 200 μg/L had significantly higher SCV rate than that of patients having Lp-PLA2 ≤ 200 μg/L. Conclusion The admission Lp-PLA2 level might be a helpful predictor for SCV in aSAH.
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Affiliation(s)
- Chen-Yu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Fang-Yu Wang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Han-Pei Cai
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Xiao-Yong Chen
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Shu-Fa Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Liang-Hong Yu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Yuan-Xiang Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - Zhang-Ya Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
| | - De-Zhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian People's Republic of China
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Gocmen S, Acka G, Karaman K, Kahraman S. Cerebral Vasospasm after Posterior Fossa Tumor Surgery: A Case Report and Literature Review. Pediatr Neurosurg 2020; 55:393-398. [PMID: 33302279 DOI: 10.1159/000511879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/19/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION This report presents an unusual case of symptomatic vasospasm following resection of posterior fossa tumor in a 9-year-old female patient. To the best of our knowledge, only 6 pediatric cases of vasospasms as a complication of brain tumor surgery have been reported in the literature previously. CASE PRESENTATION After an uneventful 12 days postoperatively, the patient suddenly presented with acute neurological deterioration on the 13th day and MR angiography showed bilateral narrowing of the supraclinoid segments of the internal carotid artery and the proximal parts of the A1 and M1 segments. Hypervolemia and vasospasm treatments were administered, and the patient exhibited no neurological deficit at the time of discharge, confirmed via normal MRI. CONCLUSION Early diagnosis and intervention in case of suspected symptomatic cerebral vasospasm after pediatric posterior fossa tumor surgery are essential in order to achieve favorable outcomes.
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Affiliation(s)
- Selcuk Gocmen
- Department of Neurosurgery, Anadolu Medical Center, Kocaeli, Turkey,
| | - Gokhan Acka
- Department of Neurosurgery, Anadolu Medical Center, Kocaeli, Turkey
| | - Kutlay Karaman
- Department of Radiology, Anadolu Medical Center, Kocaeli, Turkey
| | - Serdar Kahraman
- Department of Neurosurgery, Anadolu Medical Center, Kocaeli, Turkey
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Cholesterol-Reducing Agents for Treatment of Aneurysmal Subarachnoid Hemorrhage: Systematic Review and Meta-Analysis of Randomized Controlled Trials. World Neurosurg 2017; 101:476-485. [DOI: 10.1016/j.wneu.2017.01.125] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 01/26/2017] [Accepted: 01/30/2017] [Indexed: 11/20/2022]
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Grossauer S, Koeck K, Kraschl J, Olipitz O, Hausegger KA, Vince GH. Detection of Cerebral Vasospasm Following Aneurysmal Subarachnoid Hemorrhage Using Motor Evoked Potentials. Neurosurgery 2016; 78:265-73. [PMID: 26421589 DOI: 10.1227/neu.0000000000001040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Early detection of vasospasm (VS) following aneurysmal subarachnoid hemorrhage (aSAH) is vital to trigger therapy and to prevent infarction and subsequent permanent neurological deficit. Although motor evoked potentials (MEPs) are a well-established method for intraoperative detection of cerebral VS and cerebral ischemia during aneurysm surgery, there are no studies investigating the diagnostic value of MEPs for detecting delayed VS following aSAH in an intensive care unit. OBJECTIVE A prospective study was conceived to assess the diagnostic accuracy of MEPs in comparison with digital subtraction angiography. METHODS MEP threshold changes were determined in patients both with and without angiographic VS following high-grade aSAHs. Sensitivity, specificity, and the positive and negative predictive values of significant MEP threshold increases, which indicate angiographic VS, were calculated. RESULTS In all patients experiencing VS of the arteries supplying cerebral motor areas, a minimal MEP threshold increase of 50 mA (mean 66.25 mA) was observed, whereas a maximum MEP threshold increase of 30 mA was observed in patients without VS. Therefore, an increase from a baseline of ≥50 mA was considered significant and resulted in a sensitivity of 0.83, a specificity of 0.92, a positive predictive value of 0.83, and a negative predictive value of 0.92. CONCLUSION VS following aSAH can be detected accurately by using MEPs. MEPs are a feasible bedside tool for online VS detection in an intensive care unit and, therefore, may complement existing diagnostic tools.
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Affiliation(s)
- Stefan Grossauer
- ‡Department of Neurosurgery, General Hospital of Klagenfurt, Klagenfurt, Austria; §Institute of Human Biology, Karl-Franzens University Graz, Graz, Austria; ¶Department of Interventional and Diagnostic Radiology, General Hospital of Klagenfurt, Klagenfurt, Austria
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Emprechtinger R, Piso B, Ringleb PA. Thrombectomy for ischemic stroke: meta-analyses of recurrent strokes, vasospasms, and subarachnoid hemorrhages. J Neurol 2016; 264:432-436. [DOI: 10.1007/s00415-016-8205-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/10/2016] [Indexed: 11/30/2022]
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Leclerc JL, Blackburn S, Neal D, Mendez NV, Wharton JA, Waters MF, Doré S. Haptoglobin phenotype predicts the development of focal and global cerebral vasospasm and may influence outcomes after aneurysmal subarachnoid hemorrhage. Proc Natl Acad Sci U S A 2015; 112:1155-60. [PMID: 25583472 PMCID: PMC4313833 DOI: 10.1073/pnas.1412833112] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cerebral vasospasm (CV) and the resulting delayed cerebral ischemia (DCI) significantly contribute to poor outcomes following aneurysmal subarachnoid hemorrhage (aSAH). Free hemoglobin (Hb) within the subarachnoid space has been implicated in the pathogenesis of CV. Haptoglobin (Hp) binds free pro-oxidant Hb, thereby modulating its harmful effects. Humans can be of three Hp phenotypes: Hp1-1, Hp2-1, or Hp2-2. In several disease states, the Hp2-2 protein has been associated with reduced ability to protect against toxic free Hb. We hypothesized that individuals with the Hp2-2 phenotype would have more CV, DCI, mortality, and worse functional outcomes after aSAH. In a sample of 74 aSAH patients, Hp2-2 phenotype was significantly associated with increased focal moderate (P = 0.014) and severe (P = 0.008) CV and more global CV (P = 0.014) after controlling for covariates. Strong trends toward increased mortality (P = 0.079) and worse functional outcomes were seen for the Hp2-2 patients with modified Rankin scale at 6 wk (P = 0.076) and at 1 y (P = 0.051) and with Glasgow Outcome Scale Extended at discharge (P = 0.091) and at 1 y (P = 0.055). In conclusion, Hp2-2 phenotype is an independent risk factor for the development of both focal and global CV and also predicts poor functional outcomes and mortality after aSAH. Hp phenotyping may serve as a clinically useful tool in the critical care management of aSAH patients by allowing for early prediction of those patients who require increased vigilance due to their inherent genetic risk for the development of CV and resulting DCI and poor outcomes.
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Affiliation(s)
| | | | | | | | | | | | - Sylvain Doré
- Departments of Anesthesiology, Neuroscience, Neurology, Psychiatry, and Pharmaceutics, University of Florida, Gainesville, FL 32610
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Kooijman E, Nijboer CH, van Velthoven CTJ, Kavelaars A, Kesecioglu J, Heijnen CJ. The rodent endovascular puncture model of subarachnoid hemorrhage: mechanisms of brain damage and therapeutic strategies. J Neuroinflammation 2014; 11:2. [PMID: 24386932 PMCID: PMC3892045 DOI: 10.1186/1742-2094-11-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 12/17/2013] [Indexed: 01/05/2023] Open
Abstract
Subarachnoid hemorrhage (SAH) represents a considerable health problem. To date, limited therapeutic options are available. In order to develop effective therapeutic strategies for SAH, the mechanisms involved in SAH brain damage should be fully explored. Here we review the mechanisms of SAH brain damage induced by the experimental endovascular puncture model. We have included a description of similarities and distinctions between experimental SAH in animals and human SAH pathology. Moreover, several novel treatment options to diminish SAH brain damage are discussed.SAH is accompanied by cerebral inflammation as demonstrated by an influx of inflammatory cells into the cerebral parenchyma, upregulation of inflammatory transcriptional pathways and increased expression of cytokines and chemokines. Additionally, various cell death pathways including cerebral apoptosis, necrosis, necroptosis and autophagy are involved in neuronal damage caused by SAH.Treatment strategies aiming at inhibition of inflammatory or cell death pathways demonstrate the importance of these mechanisms for survival after experimental SAH. Moreover, neuroregenerative therapies using stem cells are discussed as a possible strategy to repair the brain after SAH since this therapy may extend the window of treatment considerably. We propose the endovascular puncture model as a suitable animal model which resembles the human pathology of SAH and which could be applied to investigate novel therapeutic therapies to combat this debilitating insult.
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Affiliation(s)
- Elke Kooijman
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cora H Nijboer
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cindy TJ van Velthoven
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Annemieke Kavelaars
- Division of Internal Medicine, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jozef Kesecioglu
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cobi J Heijnen
- Division of Internal Medicine, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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